Salts of 6-heterocycle substituted hexahydrophenanthridine derivatives

ABSTRACT

Disclosed herein are salts of 6-heteroaryl substituted hexahydrophenanthridine PDE4 inhibiting compounds, which can be used in the pharmaceutical industry for the production of pharmaceutical compositions.

This is a Continuation Application of U.S. Ser. No. 12/659,977, filedMar. 26, 2010, now U.S. Pat. No. 8,354,535, which is a ContinuationApplication of U.S. Ser. No. 11/884,934, filed Aug. 23, 2007, now U.S.Pat. No. 7,718,668, which was filed under 35 U.S.C. 371 as a nationalstage of PCT/EP2006/060377, filed Mar. 1, 2006, and claims benefit toEuropean Patent Office Application Nos. 05101619.4, filed Mar. 2, 2005,and 05108442.4, filed Sep. 14, 2005, the content of each of which ishereby incorporated by reference in its entirety.

FIELD OF APPLICATION OF THE INVENTION

The invention relates to salts of active compounds, which can be used inthe pharmaceutical industry for the production of pharmaceuticalcompositions.

KNOWN TECHNICAL BACKGROUND

The International Patent applications WO99/57118 and WO02/05616 describe6-phenylphenanthridines as PDE4 inhibitors.

In the International Patent application WO99/05112 substituted6-alkylphenanthridines are described as bronchial therapeutics.

In the European Patent application EP 0490823 dihydroisoquinolinederivatives are described which are said to be useful in the treatmentof asthma.

The International Patent application WO00/42019 discloses6-arylphenanthridines as PDE4 inhibitors.

The International Patent application WO02/06270 discloses6-heteroarylphenanthridines as PDE4 inhibitors.

The International Patent application WO97/35854 disclosesphenanthridines substituted in the 6-position as PDE4 inhibitors.

The International Patent applications WO2004/019944 and WO2004/019945disclose hydroxy-substituted 6-phenylphenanthridines as PDE4 inhibitors.

The International Patent application WO2005/085225 discloses hydroxyl-6heteroarylphenanthridine derivatives as active compounds, the disclosureof which is incorporated herein.

DESCRIPTION OF THE INVENTION

It has now been found that the novel compounds (i.e. salts of activefree bases) described in greater detail below have surprising andparticularly advantageous properties.

Thus, the invention relates, in a first aspect, to the following salts

-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    hydrochloride;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    hydrochloride;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    sulfate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    methansulfonate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    methansulfonate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    citrate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    citrate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    L-tartrate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    L-tartrate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    D-tartrate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    D-tartrate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    meso-tartrate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    meso-tartrate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-malate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-malate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-malate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-malate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-malate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-malate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-malate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    D-malate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    D-malate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    L-malate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    L-malate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    fumarate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    fumarate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    maleinate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    maleinate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    2-oxoglutarate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    2-oxoglutarate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-10b-hexahydro-phenanthridin-2-ol    oxalate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    oxalate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    oxalate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    D-gluconate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    D-gluconate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate; and-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate.

Further thus, the invention also relates, in a second aspect, to thefollowing salts

-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-malate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-malate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-malate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxoglutarate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxoglutarate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    edisilate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    edisilate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    esilate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    esilate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4    a,10b-hexahydro-phenanthridin-2-ol hydrobromide;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    hydrobromide;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    hydrobromide;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-meth    yl-1H-pyridin-2-one tosylate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    tosylate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate; and-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate.

It is known to the person skilled in the art that compounds, when theyare isolated, for example, in crystalline form, can contain variousamounts of solvents. The invention therefore also comprises all solvatesand in particular all hydrates of the compounds according to thisinvention.

Furthermore, the invention includes all conceivable tautomeric forms ofthe compounds of the present invention in pure form as well as anymixtures thereof.

Furthermore, the invention includes all conceivable polymorphic forms ofthe compounds of the present invention in pure form as well as anymixtures thereof.

The compounds according to the invention and their starting compoundscan be prepared, for example, in a manner as described by way of examplein the following examples, or analogously or similarly thereto, or asdescribed in the International application WO2005/085225(PCT/EP2005/050931) the disclosure of which is incorporated herein.

Salts are obtained by dissolving the free compound in a suitable solvent(e.g. a ketone, such as acetone, methyl ethyl ketone or methyl isobutylketone, an ether, such as diethyl ether, tetrahydrofuran or dioxane, achlorinated hydrocarbon, such as methylene chloride or chloroform, or alow-molecular-weight aliphatic alcohol, such as methanol, ethanol orisopropanol) which contains the desired acid, or to which the desiredacid is then added. The salts are obtained by filtering,reprecipitating, precipitating with a nonsolvent for the addition saltor by evaporating the solvent. Salts obtained can be converted into thefree compounds, which can in turn be converted into salts, byacidification. In this manner, pharmacologically unacceptable salts canbe converted into pharmacologically acceptable salts.

Optionally the salts according to this invention can be converted in asuitable solvent with the aid of a suitable base into the freecompounds, which can be isolated in a manner known per se.

The solvates or particularly hydrates of the compounds according to thisinvention can be prepared in a manner known per se, e.g. in the presenceof the appropriate solvent. Hydrates may be obtained from water or frommixtures of water with polar organic solvents (for example alcohols,e.g. methanol, ethanol or isopropanol, or ketones, e.g. acetone).

Suitably, the conversions mentioned in this invention can be carried outanalogously or similarly to methods which are familiar per se to theperson skilled in the art.

The person skilled in the art knows on the basis of his/her knowledgeand on the basis of those synthesis routes, which are shown anddescribed within the description of this invention, how to find otherpossible synthesis routes for compounds according to this invention. Allthese other possible synthesis routes are also part of this invention.

The present invention also relates to intermediates, including theirsalts, methods and processes useful in synthesizing compounds accordingto this invention.

Having described the invention in detail, the scope of the presentinvention is not limited only to those described characteristics orembodiments. As will be apparent to persons skilled in the art,modifications, analogies, variations, derivations, homologisations andadaptations to the described invention can be made on the base ofart-known knowledge and/or, particularly, on the base of the disclosure(e.g. the explicite, implicite or inherent disclosure) of the presentinvention without departing from the spirit and scope of this inventionas defined by the scope of the appended claims.

The examples below illustrate the invention in more detail, withoutlimiting it.

Any or all of the compounds according to this invention which arementioned as final compounds in the following examples are a preferredsubject of the present invention.

In the examples, m.p. stands for melting point, h for hour(s), min forminutes, R_(f) for retention factor in thin layer chromatography, s.p.for sintering point, EF for empirical formula, MW for molecular weight,MS for mass spectrum, M for molecular ion, fnd. for found, calc. forcalculated, other abbreviations have their meanings customary per se tothe skilled person.

According to common practice in stereochemistry, the symbols RS and SRare used to denote the specific configuration of each of the chiralcenters of a racemate. In more detail, for example, the term“(2RS,4aRS,10bRS)” stands for a racemate (racemic mixture) comprisingthe one enantiomer having the configuration (2R,4aR,10bR) and the otherenantiomer having the configuration (2S,4aS,10bS).

EXAMPLES Final Compounds

Starting from the appropriate free bases mentioned below (compounds 2 to17) and the appropriate acid the corresponding salts can be obtained,for example, according to the following general procedure, oranalogously or similarly thereto:

About 1 g of the free base is solved in about 10 ml of a suitablesolvent at room temperature or at elevated temperature. To this solutionabout 1.1 eq. of the appropriate acid is added in one portion understirring. The mixture is stirred over night while the salt precipitates.The salt is filtered off, washed with about 2 ml of a suitable solventand dried over night at about 50° C. in vacuo. Suitable solvents mayinclude, without being restricted thereto, organic solvents, such as,for example, lower alcohols (e.g. methanol, ethanol, isopropanol or thelike), ether solvents (e.g. THF, dioxane, diethylether or the like) orketone solvents (e.g. acetone, methyl isobutyl ketone or the like), aswell as mixtures of organic solvents, or mixtures thereof with water, orwater, with or without heating.

Thus, for example, in the case of hydrochloric acid or hydrobromic acidan ether or alcohol or ketone solvent (e.g. dioxane, THF, diethylether,methanol, ethanol, isopropanol, methyl isobutyl ketone or the like), orin the case of organic acids, such as e.g. fumaric, tartaric,2-oxoglutaric acid or a sulfonic acid or the like, a ketone solvent(e.g. acetone or methyl isobutyl ketone), an ether solvent (e.g. THF) oran alcohol solvent (e.g. isopropanol) may be suitable.

Representative Example:

(2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol2-oxoglutarate

(2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol((42.7 mg, 0.1 mmol) are dissolved in 0.5 ml of acetone. 16.1 mg (0.11mmol) of 2-oxo-pentanedioic acid (dissolved in 0.5 ml of acetone) areadded. The crystals are filtered off and dried to obtain 40.6 mg (71%)of the title compound (m.p.: 124° C.).

Further Representative Example:

(2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-olfumarate

(2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol(41.9 mg, 0.1 mmol) are dissolved in 0.5 ml of acetone. 12.8 mg (0.11mmol) of fumaric acid (dissolved in 0.5 ml of a 82:18 mixture of acetoneand isopropanol) are added. The crystals are filtered off and dried toobtain 15.4 mg (29%) of the title compound (m.p.: 170° C.).

Further Representative Example:

(2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-olfumarate

(2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol(38.3 mg, 0.1 mmol) are dissolved in 0.5 ml of acetone. 12.8 mg (0.11mmol) of fumaric acid (dissolved in 0.5 ml of a 82:18 mixture of acetoneand isopropanol) are added. The crystals are filtered off and dried toobtain 32.1 mg (64%) of the title compound (m.p.: 124° C.).

Further Representative Example:

(2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-olL-tartrate

(2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol(42.7 mg, 0.1 mmol) are dissolved in 0.5 ml of acetone. 16.5 mg (0.11mmol) of L-tartaric acid (dissolved in 0.5 ml of a 75:15 mixture ofacetone and isopropanol) are added. The crystals are filtered off anddried to obtain 42.9 mg (74%) of the title compound (m.p.: 249° C.).

Further Representative Example:

(2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-olfumarate

(2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol(42.7 mg, 0.1 mmol) are dissolved in 0.5 ml of acetone. 12.8 mg (0.11mmol) of fumaric acid (dissolved in 0.5 ml of a 82:18 mixture of acetoneand isopropanol) are added. The crystals are filtered off and dried toobtain 30.9 mg (57%) of the title compound (m.p.: 123° C.).

Further Representative Example:

(2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-olhydrobromide

(2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol(1.2 g; 2.9 mmol) is dissolved in 7.2 ml of 4-methyl-2-pentanone. Thesolution is heated up to 60° C. 350 μl (3.05 mmol) of aqueous HBr(W=47%) are added. After crystallisation the suspension is stirred overnight. The crystals are filtered off and dried to obtain 1.38 g (97%) ofthe title compound (m.p.: 163° C.).

Further Representative Example:

(2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-olmesylate

(2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol(1.5 g; 3.6 mmol) is dissolved in 9 ml of tetrahydrofuran. The solutionis heated up to 60° C. 247 μg (3.8 mmol) of methanesulfonic acid areadded. After crystallisation the suspension is stirred over night. Thecrystals are filtered off and dried to obtain 1.73 g (95%) of the titlecompound (m.p.: 193° C.).

Further Representative Example:

(2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-olfumarate

(2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol(41.2 mg, 0.1 mmol) are dissolved in 0.5 ml of acetone. 12.8 mg (0.11mmol) of fumaric acid (dissolved in 0.5 ml of a 82:18 mixture of acetoneand isopropanol) are added. The crystals are filtered off and dried toobtain 21.1 mg (40%) of the title compound (m.p.: 194° C.).

Further Representative Example:

(2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol2-oxoglutarate

(2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol(39.4 mg, 0.1 mmol) are dissolved in 1.0 ml of dichloromethane. 16.1 mg(0.11 mmol) of 2-oxo-pentanedioic acid (dissolved in 0.5 ml of acetone)are added. The crystals are filtered off and dried to obtain 30.9 mg(57%) of the title compound (m.p.: 112° C.).

Further Representative Example:

(2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-olhydrochloride

(2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol(1.5 g; 3.6 mmol) is dissolved in 9 ml of 2-propanol. The solution isheated up to 60° C. 760 μl (3.8 mmol) of HCl (c=5 mol/l in 2-propanol)are added. The solution is cooled down to room temperature and stirredover night. The solution is inoculated with some crystals of the titlecompound. After crystallisation the suspension is stirred over night.The crystals are filtered off and dried to obtain 0.3 g (19%) of thetitle compound (m.p.: 164° C.).

Further Representative Example:

(2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-olethandisulfonate

(2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol(1.2 g; 2.9 mmol) is dissolved in 8.2 ml of tetrahydrofuran. Thesolution is heated up to 50° C. 580 mg (3.05 mmol) of ethandisulfonicacid are added. After crystallisation 1 ml ethanol is added and thesuspension is stirred over night. The crystals are filtered off anddried to obtain 1.35 g (77%) of the title compound (m.p.: 233° C.).

Further Representative Example:

(2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-olethansulfonate

(2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol(1.5 g; 3.64 mmol) is dissolved in 9 ml of 4-methyl-2-pentanone. Thesolution is heated up to 50° C. 312 μl (3.82 mmol) of ethansulfonic acidare added. After crystallisation 3 ml 4-methyl-2-pentanon is added andthe suspension is stirred over night. The crystals are filtered off anddried to obtain 1.78 g (94%) of the title compound (m.p.: 216° C.).

Further Representative Example:

(2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-olL-tartrate

(2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol(42.7 mg, 0.1 mmol) are dissolved in 1.0 ml of dichloromethane. 16.5 mg(0.11 mmol) of L-tartaric acid (dissolved in 0.5 ml of a 75:15 mixtureof acetone and isopropanol) are added. The crystals are filtered off anddried to obtain 33.3 mg (61%) of the title compound (m.p.: 206° C.).

Further Representative Example:

(2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-olfumarate

(2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol(39.4 mg, 0.1 mmol) are dissolved in 1.0 ml of dichloromethane. 12.8 mg(0.11 mmol) of fumaric acid (dissolved in 0.5 ml of a 82:18 mixture ofacetone and isopropanol) are added. The crystals are filtered off anddried to obtain 22.9 mg (45%) of the title compound (m.p.: 210° C.).

Further Representative Example:

(2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-oltosylate

(2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol (1.5 g; 3.6mmol) is dissolved in 9 ml of 2-propanol. The solution is heated up to60° C. 723 mg (3.8 mmol) of p-toluenesulfonic acid are added. Thesolution is cooled down to room temperature and stirred over night. Froma part of the solution seed crystals are produced and added to theremaining solution. The crystals are filtered off and dried to obtain1.98 g (94%) of the title compound (m.p.: 218° C.).

Further Representative Example:

5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one2-oxoglutarate

5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one(38.2 mg, 0.1 mmol) are dissolved in 0.5 ml of acetone. 16.1 mg (0.11mmol) of 2-oxo-pentanedioic acid (dissolved in 0.5 ml of acetone) areadded. The crystals are filtered off and dried to obtain 35.3 mg (67%)of the title compound (m.p.: 147° C.).

Further Representative Example:

5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-oneL-tartrate

5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one(38.2 mg, 0.1 mmol) are dissolved in 0.5 ml of acetone. 16.5 mg (0.11mmol) of L-tartaric acid (dissolved in 0.5 ml of a 75:15 mixture ofacetone and isopropanol) are added. The crystals are filtered off anddried to obtain 44.2 mg (83%) of the title compound (m.p.: 205° C.).

Further Representative Example:

5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-onefumarate

5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one(38.2 mg, 0.1 mmol) are dissolved in 0.5 ml of acetone. 12.8 mg (0.11mmol) of fumaric acid (dissolved in 0.5 ml of a 82:18 mixture of acetoneand isopropanol) are added. The crystals are filtered off and dried toobtain 25.6 mg (51%) of the title compound (m.p.: 156° C.).

Further Representative Example:

(2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-olfumarate

(2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol(38.2 mg, 0.1 mmol) are dissolved in 0.5 ml of acetone. 12.8 mg (0.11mmol) of fumaric acid (dissolved in 0.5 ml of a 82:18 mixture of acetoneand isopropanol) are added. The crystals are filtered off and dried toobtain 26.0 mg (52%) of the title compound (m.p.: 173° C.).

The following salts may be obtained according to any of theabovementioned procedures or analogously or similarly thereto:

-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4a,10b-hexahydro-phenanthridin-2-ol    hydrochloride;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    hydrochloride;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    hydrochloride;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    sulfate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    sulfate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsutfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    methansulfonate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    methansulfonate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    methansulfonate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    citrate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    citrate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    citrate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4    a,10b-hexahydro-phenanthridin-2-ol L-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate, m.p.: 166° C. (from acetone/isopropanol);-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate, m.p.: 177° C. (from acetone/isopropanol);-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate, m.p.: 203° C. (from acetone/isopropanol);-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate, m.p.: 249° C. (from acetone/isopropanol);-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate, m.p.: 190° C. (from acetone/isopropanol);-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate, m.p.: 206° C. (from    acetone/isopropanol/dichloromethane);-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-tartrate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    L-tartrate, m.p.: 205° C. (from acetone/isopropanol);-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    L-tartrate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate, m.p.: fnd.: decomposition starting at 107° C. (from    acetone);-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-tartrate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    D-tartrate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    D-tartrate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    meso-tartrate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    meso-tartrate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    meso-tartrate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-malate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-malate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-malate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-malate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-malate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-malate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-malate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-malate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-malate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-malate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    D-malate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    D-malate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    L-malate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    L-malate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    L-malate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate, m.p.: fnd.: decomposition starting at 172° C. (from    acetone);-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate, m.p.: 170° C. (from acetone/isopropanol);-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate, m.p.: 124° C. (from acetone/isopropanol);-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate, m.p.: 202° C. (from acetone/isopropanol);-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate, m.p.: 173° C. (from acetone/isopropanol);-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate, m.p. 123° C. (from acetone/isopropanol);-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate, m.p.: 194° C. (from acetone/isopropanol);-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate, m.p.: 210° C. (from acetone/isopropanol/dichloromethane);-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    fumarate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    fumarate, m.p.: 156° C. (from acetone/isopropanol);-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    fumarate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    maleinate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    maleinate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    maleinate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate, m.p.: fnd.: decomposition starting at 110° C. (from    acetone);-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate, m.p.: 218° C. (from acetone);-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate, m.p.: 171° C. (from acetone);-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate, m.p.: 202° C. (from acetone);-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate, m.p.: 124° C. (from acetone);-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate, m.p.: 143° C. (from acetone);-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate, m.p.: 112° C. (from acetone/dichloromethane);-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    2-oxoglutarate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    2-oxoglutarate, m.p.: 147° C. (from acetone);-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    2-oxoglutarate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    edisilate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    edisilate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    edisilate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    esilate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    esilate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    esilate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    hydrobromide;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    hydrobromide;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    hydrobromide;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    tosylate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    tosylate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    tosylate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate, m.p.: 126° C. (from acetone);-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate;-   (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate, m.p.: 181° C. (from acetone);-   (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    oxalate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    oxalate;-   (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-Methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    D-gluconate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one    D-gluconate;-   5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one    D-gluconate;-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate, m.p.: 212.0° C. (from acetone); and-   (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol    oxalate, m.p.: 170.6° C. (from acetone).

Optionally the abovementioned salts can be converted in a suitablesolvent with the aid of a suitable base into the free compounds, whichcan be isolated in a manner known per se.

Free Bases

-   1.    (2RS,4aRS,10bRS)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol

423 mg of acetic acid(2RS,4aRS,10bRS)-6-(2,6-dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ylester (compound 18) dissolved in 1 ml of dichloromethane and 9 ml ofmethanol are added to 152 mg of cesium carbonate and the solutionstirred for 19 h. The reaction mixture is adsorbed to silica gel andpurified by flash chromatography to give 229 mg of the title compound asa colourless foam.

EF: C₂₃H₂₈N₂O₅: MW: calc.: 412.49. MS: fnd.: 413.3 (MH⁺).

Starting from the appropriate ester compounds, which are mentioned ordescribed explicitly below (compound 19 to 32) the following compoundsare obtained according to the procedure as in compound 1 or analogouslyor similarly thereto.

-   2.    (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol

Starting from compound 19 the title compound is obtained in an analogousmanner as described for compound 1.

EF: C₂₀H₂₃N₃O₃; MW: calc.: 353.42. MS: fnd.: 354.3.

-   3.    (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol

Starting from compound 20 the title compound is obtained in an analogousmanner as described for compound 1.

EF: C₂₄H₂₆N₄O₃; MW: calc.: 418.5. MS: fnd.: 419.4 [α]²⁰ _(D)=−84°.

-   4.    (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol

Starting from compound 21 the title compound is obtained in an analogousmanner as described for compound 1.

EF: C₂₁H₂₅N₃O₄; MW: calc.: 383.45. MS: fnd.: 384.3.

-   5.    (2R,4aR,10bR)-6-(2,4-Dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol

Starting from compound 22 the title compound is obtained in an analogousmanner as described for compound 1.

EF: C₂₂H₂₇N₃O₅: MW: calc.: 413.48. MS: fnd.: 414.3.

-   6.    (2R,4aR,10bR)-9-Ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol

Starting from compound 23 the title compound is obtained in an analogousmanner as described for compound 1.

EF: C₂₄H₂₆N₄O₃; MW: calc.: 418.5. MS: fnd.: 419.3.

-   7.    (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol

Starting from compound 24 the title compound is obtained in an analogousmanner as described for compound 1.

EF: C₂₀H₂₃N₃O₃; MW: calc.: 353.42. MS: fnd.: 354.3.

-   8.    (2R,4aR,10bR)-6-(2,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol

Starting from compound 25 the title compound is obtained in an analogousmanner as described for compound 1.

Alternatively, the title compound can be obtained by chromatographicalseparation of the corresponding racemate (compound 1) using a column asdescribed below at the end of the chapter.

EF: C₂₃H₂₈N₂O₅; MW: calc.: 412.49. MS: fnd.: 413.3.

-   9.    5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one

Starting from compound 26 the title compound is obtained in an analogousmanner as described for compound 1.

C₂₂H₂₆N₂O₄ Calc.: 382.46. MS: Found (MH⁺): 383.2.

-   10.    (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol

Starting from compound 27 the title compound is obtained in an analogousmanner as described for compound 1.

C₂₂H₂₆N₂O₄ Calc.: 382.46. MS: Found (MH⁺): 383.3.

-   11.    (2R,4aR,10bR)-6-(2-Dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol

Starting from compound 28 the title compound is obtained in an analogousmanner as described for compound 1.

C₂₃H₃₀N₄O₄ Calc.: 426.52. MS: Found (MH⁺): 427.3.

-   12.    (2R,4aR,10bR)-6-(4,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol

Starting from compound 29 the title compound is obtained in an analogousmanner as described for compound 1.

C₂₃N₂₈N₂O₅ Calc.: 412.49. MS: Found (MH⁺): 413.3.

-   13.    (2R,4aR,10bR)-6-(2-Dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol

Starting from compound 30 the title compound is obtained in an analogousmanner as described for compound 1.

C₂₂H₂₈N₄O₃ Calc.: 396.49. MS: Found (MH⁺): 397.3.

-   14.    5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyrimidin-2-one

Starting from compound 31 the title compound is obtained in an analogousmanner as described for compound 1.

C₂₁H₂₅N₃O₄ Calc.: 383.45. MS: Found (MH⁺): 384.2.

-   15.    (2R,4aR,10bR)-6-(3,6-Dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol

Starting from compound 32 the title compound is obtained in an analogousmanner as described for compound 1.

C₂₂H₂₇N₃O₅ Calc.: 413.48. MS: Found (MH⁺): 414.3.

-   16.    (2R,4aR,10bR)-6-(5,6-Dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol

Starting from compound 33 the title compound is obtained in an analogousmanner as described for compound 1.

C₂₃H₂₈N₂O₅ Calc.: 412.49. MS: Found (MH⁺): 413.3.

-   17.    (2R,4aR,10bR)-9-Ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-ol

Starting from compound 34 the title compound is obtained in an analogousmanner as described for compound 1.

C₂₁H₂₅N₃O₃S Calc.: 399.52. MS: Found (MH⁺): 400.3.

Chromatographical Separation:

Alternatively to the above described synthesis proceduresenantiomerically pure compounds can be obtained from the correspondingracemates by chromatographical separation, which can be afforded withone or more of the following chiral columns:

Chiralpak® AD-H 5 μm (250×20 mm), 25° C.,heptane/2-propanol/diethylamine=90/10/0.1; 20 ml/min, detection at 340nm;

Chiralpak® AD 20 μm (285×110 mm), 30° C., acetonitrile/isopropanol=95:5;570 ml/min, detection at 250 nm or 280 nm;

Chiralpak® AD 20 μm (250×50 mm), ambient temperature,heptane/isopropanol=95:5, 120 ml/min, detection at 330 nm; or

Chiralpak® 50801 20 μm (250×50 mm), 25° C., methanol, 120 ml/min,detection at 330 nm.

-   18. Acetic acid    (2RS,4aRS,10bRS)-6-(2,6-dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-yl    ester

1.67 g of phosphorus pentachloride are suspended in 5 ml ofdichloromethane. 1.227 g of crude acetic acid(1RS,3RS,4RS)-4-{[1-(2,6-dimethoxy-pyridin-3-yl)methanoyl]amino}-3-(3-ethoxy-4-methoxyphenyl)cyclohexylester (compound A1) dissolved in 15 ml of dichloromethane are added andthe reaction mixture stirred at room temperature over night. Thereaction mixture is cooled with an ice bath and 20 ml of triethylamineare added, than cautiously 10 ml of water with vigorous stirring. Theorganic layer is separated, concentrated and the crude product purifiedby flash chromatography to give 715 mg of the title compound.

EF: C₂₅H₃₀N₂O₆; MW: calc.: 454.53. MS: fnd.: 455.2 (MH⁺).

Starting from the appropriate compounds, which are mentioned ordescribed explicitly below (compound A2 to A17) the following compoundsare obtained according to the procedure as in compound 18 or analogouslyor similarly thereto. If necessary, the cyclization reaction can becarried out in the presence of a catalytic amount of a Lewis acid suchas e.g. tin tetrachloride.

-   19. Acetic acid    (2R,4aR,10bR)-9-ethoxy-8-methoxy-6-pyrimidin-5-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-yl    ester

EF: C₂₂H₂₅N₃O₄; MW: calc.: 395.46. MS: fnd.: 396.3.

-   20. Acetic acid    (2R,4aR,10bR)-9-ethoxy-8-methoxy-6-(6-pyrazol-1-yl-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-yl    ester

EF: C₂₆H₂₅N₃O₄; MW: calc.: 460.54. MS: fnd.: 461.3.

-   21. Acetic acid    (2R,4aR,10bR)-9-ethoxy-8-methoxy-6-(2-methoxy-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-yl    ester

EF: C₂₃H₂₇N₃O₅; MW: calc.: 425.49. MS: fnd.: 426.3.

-   22. Acetic acid    (2R,4aR,10bR)-6-(2,4-dimethoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-yl    ester

EF: C₂₄H₂₈N₃O₆; MW: calc.: 455.52. MS: fnd.: 456.3.

-   23. Acetic acid    (2R,4aR,10bR)-9-ethoxy-6-(6-imidazol-1-yl-pyridin-3-yl)-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-yl    ester

C₂₆H₂₈N₃O₄; MW: calc.: 460.55. MS: fnd.: 461.3.

-   24. Acetic acid    (2R,4aR,10bR)-9-ethoxy-8-methoxy-6-pyrazin-2-yl-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-yl    ester

EF: C₂₂H₂₅N₃O₄; MW: calc.: 395.46. MS: fnd.: 396.3.

-   25. Acetic acid    (2R,4aR,10bR)-6-(2,6-dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-yl    ester

EF: C₂₅H₃₀N₂O₆; MW: calc.: 454.53. MS: fnd.: 455.3.

-   26. Acetic acid    (2R,4aR,10bR)-9-ethoxy-8-methoxy-6-(1-methyl-6-oxo-1,6-dihydro-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-yl    ester

C₂₄H₂₈N₂O₅ Calc.: 424.50. Found (MH⁺): 425.3.

-   27. Acetic acid    (2R,4aR,10bR)-9-ethoxy-8-methoxy-6-(6-methoxy-pyridin-3-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-yl    ester

C₂₄H₂₈N₂O₅ Calc.: 424.50. Found (MH⁺): 425.2.

-   28. Acetic acid    (2R,4aR,10bR)-6-(2-dimethylamino-4-methoxy-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-yl    ester

C₂₅H₃₂N₄O₅ Calc.: 468.56. Found (MH⁺): 469.3.

-   29. Acetic acid    (2R,4aR,10bR)-6-(4,6-dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-yl    ester

C₂₅H₃₀N₂O₆ Calc.: 454.53. Found (MH⁺): 455.3.

-   30. Acetic acid    (2R,4aR,10bR)-6-(2-dimethylamino-pyrimidin-5-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-yl    ester

C₂₄H₃₀N₄O₄ Calc.: 438.53. Found (MH⁺): 439.3.

-   31. Acetic acid    (2R,4aR,10bR)-9-ethoxy-8-methoxy-6-(1-methyl-2-oxo-1,2-dihydro-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-yl    ester

C₂₃H₂₇N₃O₅ Calc.: 425.49.

-   32. Acetic acid    (2R,4aR,10bR)-6-(3,6-dimethoxy-pyridazin-4-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-yl    ester

C₂₄H₂₉N₃O₆ Calc.: 455.52. Found (MH⁺): 456.3.

-   33. Acetic acid    (2R,4aR,10bR)-6-(5,6-dimethoxy-pyridin-3-yl)-9-ethoxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-yl    ester

C₂₅H₃₀N₂O₆ Calc.: 454.53.

-   34. Acetic acid    (2R,4aR,10bR)-9-ethoxy-8-methoxy-6-(2-methylsulfanyl-pyrimidin-5-yl)-1,2,3,4,4a,10b-hexahydro-phenanthridin-2-yl    ester

C₂₃H₂₇N₃O₄S Calc.: 441.55.

Starting Materials

-   A1. Acetic acid    (1RS,3RS,4RS)-4-{[1-(2,6-dimethoxy-pyridin-3-yl)methanoyl]amino}-3-(3-ethoxy-4-methoxyphenyl)cyclohexyl    ester

555 mg of 2,6-dimethoxynicotinic acid and 581 mg ofN-ethyl-N′-(3-dimethylaminopropyl)carbodiimide hydrochloride are placedin a flask under nitrogen. 778 mg of acetic acid(1RS,3RS,4RS)-4-amino-3-(3-ethoxy-4-methoxyphenyl)cyclohexyl ester(compound B1) and 2 mg of 4-dimethylaminopyridine both as solution indichloromethane are added and the solution stirred for 1 h at 40° C.,than 42 h at room temperature. The reaction is quenched with 5 ml ofwater. After phase separation the organic layer is washed with 2.5 ml ofsaturated potassium hydrogencarbonate solution. After drying the organiclayer with magnesium sulfate the solvent is removed to give 1.227 g ofthe crude title compound which are used for the following step withoutfurther purification.

MW: calc.: 472.54. MS: fnd: 473.1.

The following compounds can be prepared from the starting compound B1aand the appropriate commercially available or art-known heteroarylcarboxylic acids in a manner according to compound A1 or analogously orsimilarly thereto.

-   A2. Acetic acid    (1R,3R,4R)-3-(3-ethoxy-4-methoxy-phenyl)-4-[(1-pyrimidin-5-yl-methanoyl)-amino]-cyclohexyl    ester

MW calc.: 413.48. MS: fnd: 414.1.

-   A3. Acetic acid    (1R,3R,4R)-3-(3-ethoxy-4-methoxy-phenyl)-4-{[(6-pyrazol-1-yl-pyridin-3-yl)-methanoyl]amino}-cyclohexyl    ester

MW calc.: 478.55.

-   A4. Acetic acid    (1R,3R,4R)-3-(3-ethoxy-4-methoxy-phenyl)-4-{[(2-methoxy-pyrimidin-5-yl)-methanoyl]amino}-cyclohexyl    ester

MW calc.: 443.50. MS: fnd: 444.2.

-   A5. Acetic acid    (1R,3R,4R)-4-{[1-(2,4-dimethoxy-pyrimidin-5-yl)-methanoyl]-amino}-3-(3-ethoxy-4-methoxy-phenyl)-cyclohexyl    ester

MW calc.: 473.53. MS: fnd: 474.2.

-   A6. Acetic acid    (1R,3R,4R)-3-(3-ethoxy-4-methoxy-phenyl)-4-{[(6-imidazol-1-yl-pyridin-3-yl)-methanoyl]amino}-cyclohexyl    ester

MW calc.: 478.55. MS: fnd: 479.3.

-   A7. Acetic acid    (1R,3R,4R)-3-(3-ethoxy-4-methoxy-phenyl)-4-[(1-pyrazin-2-yl-methanoyl)-amino]-cyclohexyl    ester

MW calc.: 413.48. MS: fnd: 414.2.

-   A8. Acetic acid    (1R,3R,4R)-4-{[1-(2,6-dimethoxy-pyridin-3-yl)-methanoyl]-amino}-3-(3-ethoxy-4-methoxy-phenyl)-cyclohexyl    ester

MW calc.: 472.54. MS: fnd: 473.2.

-   A9. Acetic acid    (1R,3R,4R)-3-(3-ethoxy-4-methoxy-phenyl)-4-{[1-(1-methyl-6-oxo-1,6-dihydro-pyridin-3-yl)-methanoyl]-amino}-cyclohexyl    ester-   A10. Acetic acid    (1R,3R,4R)-3-(3-ethoxy-4-methoxy-phenyl)-4-{[1-(6-methoxy-pyridin-3-yl)-methanoyl]-amino}-cyclohexyl    ester-   A11. Acetic acid    (1R,3R,4R)-4-{[1-(2-dimethylamino-4-methoxy-pyrimidin-5-yl)-methanoyl]-amino}-3-(3-ethoxy-4-methoxy-phenyl)-cyclohexyl    ester-   A12. Acetic acid    (1R,3R,4R)-4-{[1-(4,6-dimethoxy-pyridin-3-yl)-methanoyl]-amino}-3-(3-ethoxy-4-methoxy-phenyl)-cyclohexyl    ester-   A13. Acetic acid    (1R,3R,4R)-4-{[1-(2-dimethylamino-pyrimidin-5-yl)-methanoyl]-amino}-3-(3-ethoxy-4-methoxy-phenyl)-cyclohexyl    ester-   A14. Acetic acid    (1R,3R,4R)-3-(3-ethoxy-4-methoxy-phenyl)-4-{[1-methyl-2-oxo-1,2-dihydro-pyrimidin-5-yl)-methanoyl]-amino}-cyclohexyl    ester-   A15. Acetic acid    (1R,3R,4R)-3-(3-ethoxy-4-methoxy-phenyl)-4-{[1-(3,6-dimethoxy-pyridazin-4-yl)-methanoyl]-amino}-cyclohexyl    ester-   A16. Acetic acid    (1R,3R,4R)-4-{[1-(5,6-dimethoxy-pyridin-3-yl)-methanoyl]-amino}-3-(3-ethoxy-4-methoxy-phenyl)-cyclohexyl    ester-   A17. Acetic acid    (1R,3R,4R)-4-{[1-(2-methylsulfanyl-pyrimidin-5-yl)-methanoyl]-amino}-3-(3-ethoxy-4-methoxy-phenyl)-cyclohexyl    ester-   B1. Acetic acid    (1RS,3RS,4RS)-4-amino-3-(3-ethoxy-4-methoxy-phenyl)-cyclohexyl ester

Starting from compound C1 mentioned below, the title compound isobtained analogously to the procedure as in Example B2.

EF: C₁₇H₂₅NO₄; MW: 307.39 MS: 308.0 (MH⁺).

-   B1a. Acetic acid    (1R,3R,4R)-4-amino-3-(3-ethoxy-4-methoxy-phenyl)-cyclohexyl ester

24.0 g (55.0 mmol) of the pyroglutamate of the title compound (compoundB1b) are suspended in 150 ml of water, 100 ml of dichloromethane areadded, then saturated KHCO₃-solution until the gas evolution ceased.After phase separation, reextraction of the water layer and drying thecombined organic layers with sodium sulfate the solvent is removed togive 16.9 g of the salt-free title compound. Analytical ColumnChromatography (CHIRALPAK AD-H 250×4.6 mm 5μ No. ADH0CE-DB030, Eluent:n-Hexan/iPrOH=80/20 (v/v)+0.1% Diethylamine): Retention Time: 6.54 min

-   B1b. Acetic acid    (1R,3R,4R)-4-amino-3-(3-ethoxy-4-methoxy-phenyl)-cyclohexyl ester,    salt with L-pyroglutamic acid

Solution A: 55.2 g (180 mmol) of racemic acetic acid(1RS,3RS,4RS)-4-amino-3-(3-ethoxy-4-methoxy-phenyl)-cyclohexyl ester(compound B1) are dissolved in 540 ml of isopropyl acetate.

Solution B: 18.6 g (144 mmol) of L-pyroglutamic acid are dissolved in260 ml of isopropanol under heating, then 290 ml of isopropyl acetate isadded carefully.

Solution B is added to solution A and left for 48 hours. The solid isfiltered off and washed with a little isopropyl acetate to give afterdrying 32.48 g colorless crystals with a ratio of the enantiomers of97:3 in favour of the title compound.

M.p.: 165-167° C.

-   B2. Acetic acid    (1RS,3RS,4RS)-4-amino-3-(3,4-dimethoxyphenyl)cyclohexyl ester

A solution of 10.37 g of acetic acid(1RS,3RS,4RS)-3-(3,4-dimethoxyphenyl)-4-nitrocyclohexyl ester (compoundC2) in 240 ml of ethanol is added to a zinc-copper couple, prepared from16.8 g of zinc powder and 920 mg of copper (II) acetate monohydrate inacetic acid, the resulting suspension is refluxed and treated with 26 mlof acetic acid, 3.2 ml of water and 26 ml of ethanol. The resultingmixture is refluxed for further 15 min. The precipitate is filtered offwith suction and the solvent is removed. Chromatographical purificationon silica gel using a mixture of petroleum ether/ethylacetate/triethylamine in the ratio 2/7/1 and concentration of thecorresponding eluate fractions afford 5.13 g (55% of theory) of thetitle compound as a pale brown oil.

R_(f)=0.35 (petroleum ether/ethyl acetate/triethylamine=2/7/1)

-   C1. Acetic acid    (1RS,3RS,4RS)-3-(3-ethoxy-4-methoxy-phenyl)-4-nitrocyclohexyl ester

Starting from compound D1 mentioned below, the title compound isobtained according to the procedure as in the reference compound C2.

-   C2. Acetic acid    (1RS,3RS,4RS)-3-(3,4-dimethoxyphenyl)-4-nitrocyclohexyl ester

10.18 g of (1RS,3RS,4RS)-3-(3,4-dimethoxyphenyl)-4-nitrocydohexanol(compound D2) are dissolved in 100 ml of acetic anhydride and thesolution is heated to 100° C. for 1-2 h. After removal of the solvent,the residue is chromatographed on silica gel using a mixture ofpetroleum ether/ethyl acetate in the ratio 2/1. Concentration of thecorresponding eluate fractions furnish 10.37 g (89% of theory) of thetitle compound as an oil.

R_(f)=0.32 (petroleum ether/ethyl acetate=2/1)

-   D1. (1RS,3RS,4RS)-3-(3-Ethoxy-4-methoxy-phenyl)-4-nitrocyclohexanol

Starting from compound E1 mentioned below, the title compound isobtained according to the procedure as in the reference compound D2.

-   D2. (1RS,3RS,4RS)-3-(3,4-Dimethoxyphenyl)-4-nitrocyclohexanol

10 g of (1RS,3RS,4SR)-3-(3,4-dimethoxyphenyl)-4-nitrocydohexanol(compound E2) are dissolved in 170 ml of absolute 1,2-dimethoxyethane.14.3 ml of a 30% solution of sodium methanolate in methanol are addeddropwise. After complete addition, stirring is continued for 10 min anda mixture consisting of 85% phosphoric acid and methanol is added topH 1. By adding of saturated potassium hydrogencarbonate solution theresulting suspension is neutralized. The mixture is diluted with waterand dichloromethane, the organic layer is separated and extracted withdichloromethane. The solvents are removed under reduced pressure toyield the title compound as a pale yellow oil, which crystallizes. Thetitle compound is used without further purification in the next step.

R_(f)=0.29 (petroleum ether/ethyl acetate=1/1) M.p.: 126-127° C.

-   E1. (1RS,3RS,4SR)-3-(3-Ethoxy-4-methoxy-phenyl)-4-nitrocyclohexanol

Starting from compound F1 mentioned below, the title compound isobtained according to the procedure as in the reference compound E2.

-   E2. (1RS,3RS,4SR)-3-(3,4-Dimethoxyphenyl)-4-nitrocyclohexanol

Under nitrogen atmosphere 16.76 g of(3RS,4SR)-3-(3,4-dimethoxyphenyl)-4-nitrocyclohexanone (compound F2) aredissolved in 300 ml of tetrahydrofurane, the solution is cooled to −78°C., and 75 ml of 1 M solution of potassium tri-sec-butylborohydride intetrahydrofurane is added dropwise. After stirring for further 1 h, amixture consisting of 30% hydrogeneperoxide solution and phosphatebuffer solution is added. Stirring is continued for further 10 min, thereaction mixture is diluted with 400 ml of ethyl acetate and the aqueouslayer is extracted with ethyl acetate, the combined organic phases areconcentrated to give a foam, which is purified by chromatography onsilica gel using a mixture of petroleum ether/ethyl acetate in the ratio1/1 to furnish 10.18 g (60% of theory) of the title compound.

EF: C₁₄H₁₉NO₅; MW: 281.31 MS: 299.1 (MNH₄ ⁺) R_(f)=0.29 (petroleumether/ethyl acetate=1/1) M.p.: 139-141° C.

-   F1. (3RS,4SR)-3-(3-Ethoxy-4-methoxy-phenyl)-4-nitrocyclohexanone

Starting from compound G1 mentioned below, the title compound isobtained according to the procedure as in the reference compound F2.

-   F2. (3RS,4SR)-3-(3,4-Dimethoxyphenyl)-4-nitrocyclohexanone

90.0 g of 3,4-dimethoxy-ω-nitrostyrene (compound G2), 90 ml of2-trimethylsilyloxy-1,3-butadiene and 180 ml of abs. Toluene are put inan autoclave, where the mixture is stirred at 140° C. for 2 days andthen cooled. After addition of 1000 ml of ethyl acetate, 300 ml of a 2 Nsolution of hydrochloric acid are dropped under stirring. The phases areseparated and the aqueous layer is extracted three times withdichloromethane. The combined organic extracts are washed with saturatedsodium hydrogen-carbonate solution, dried over magnesium sulfate and thesolvents are removed under reduced pressure to give 150 g of the crudetitle compound. Further purification is carried out by chromatography onsilica gel using petroleum ether/ethyl acetate in the ratio 1/1 aseluent to give 81.5 g (67% of theory) of the pure title compound.

EF: C₁₄H₁₇NO₅; MW: 279.30 MS: 279 (M⁺), 297.1 (MNH₄ ⁺) R_(f)=0.47(petroleum ether/ethyl acetate=1/1) M.p.: 147-148° C.

-   G1. 3-Ethoxy-4-methoxy-ω-nitrostyrene

Starting from art-known starting compounds, the title compound isobtained according to the procedure as in the reference compound G2:

-   G2. 3,4-Dimethoxy-ω-nitrostyrene

207.0 g of 3,4-dimethoxybenzaldehyde, 100.0 g of ammonium acetate and125 ml of nitromethane are heated to boiling for 3-4 h in 1.0 l ofglacial acetic acid. After cooling in an ice bath, the precipitate isfiltered off with suction, rinsed with glacial acetic acid and petroleumether and dried. M.p.: 140-141° C. Yield: 179.0 g.

Commercial Utility

The compounds according to the invention have useful pharmacologicalproperties which make them industrially utilizable. As selective cyclicnucleotide phosphodiesterase (PDE) inhibitors (specifically of type 4),they are suitable on the one hand as bronchial therapeutics (for thetreatment of airway obstructions on account of their dilating action butalso on account of their respiratory rate- or respiratorydrive-increasing action) and for the removal of erectile dysfunction onaccount of their vascular dilating action, but on the other handespecially for the treatment of disorders, in particular of aninflammatory nature, e.g. of the airways (asthma prophylaxis), of theskin, of the intestine, of the eyes, of the CNS and of the joints, whichare mediated by mediators such as histamine, PAF (platelet-activatingfactor), arachidonic acid derivatives such as leukotrienes andprostaglandins, cytokines, interleukins, chemokines, alpha-, beta- andgamma-interferon, tumor necrosis factor (TNF) or oxygen free radicalsand proteases. In this context, the compounds according to the inventionare distinguished by a low toxicity, a good enteral absorption (highbioavailability), a large therapeutic breadth and the absence ofsignificant side effects.

On account of their PDE-inhibiting properties, the compounds accordingto the invention can be employed in human and veterinary medicine astherapeutics, where they can be used, for example, for the treatment andprophylaxis of the following illnesses: acute and chronic (in particularinflammatory and allergen-induced) airway disorders of varying origin(bronchitis, allergic bronchitis, bronchial asthma, emphysema, COPD);dermatoses (especially of proliferative, inflammatory and allergic type)such as psoriasis (vulgaris), toxic and allergic contact eczema, atopiceczema, seborrhoeic eczema, Lichen simplex, sunburn, pruritus in theanogenital area, alopecia areata, hypertrophic scars, discoid lupuserythematosus, follicular and widespread pyodermias, endogenous andexogenous acne, acne rosacea and other proliferative, inflammatory andallergic skin disorders; disorders which are based on an excessiverelease of TNF and leukotrienes, for example disorders of the arthritistype (rheumatoid arthritis, rheumatoid spondylitis, osteoarthritis andother arthritic conditions), disorders of the immune system (AIDS,multiple sclerosis), graft versus host reaction, allograft rejections,types of shock (septic shock, endotoxin shock, gram-negative sepsis,toxic shock syndrome and ARDS (adult respiratory distress syndrome)) andalso generalized inflammations in the gastrointestinal region (Crohn'sdisease and ulcerative colitis); disorders which are based on allergicand/or chronic, immunological false reactions in the region of the upperairways (pharynx, nose) and the adjacent regions (paranasal sinuses,eyes), such as allergic rhinitis/sinusitis, chronic rhinitis/sinusitis,allergic conjunctivitis and also nasal polyps; but also disorders of theheart which can be treated by PDE inhibitors, such as cardiacinsufficiency, or disorders which can be treated on account of thetissue-relaxant action of the PDE inhibitors, such as, for example,erectile dysfunction or colics of the kidneys and of the ureters inconnection with kidney stones. In addition, the compounds of theinvention are useful in the treatment of diabetes insipidus andconditions associated with cerebral metabolic inhibition, such ascerebral senility, senile dementia (Alzheimer's disease), memoryimpairment associated with Parkinson's disease or multiinfarct dementia;and also illnesses of the central nervous system, such as depressions orarteriosclerotic dementia; as well as for enhancing cognition. Yet inaddition, the compounds of the invention are useful in the treatment ofdiabetes mellitus, leukaemia and osteoporosis.

In the context of their properties, functions and usabilities mentionedherein, the compounds according to the present invention are expected tobe distinguished by valuable and desirable effects related therewith,such as e.g. any beneficial effects related with their therapeutic andpharmaceutical suitability.

Compounds according to this invention, especially when they are incrystalline form, are expected to have desirable physicochemicalproperties and such properties may beneficially influence, for example,the stability (such as e.g., without being limited thereto, the thermalstability or the hygroscopic stability or the like), as well as thechemical and pharmaceutical processing, formulating and mechanicalhandling on a commercial scale. Thus, these crystalline compounds may beparticularly suited for the manufacture of commercially viable andpharmaceutically acceptable drug compositions or dosage forms.

The present invention provides compounds according to this invention incrystalline form.

Also, the present invention provides compounds according to thisinvention isolated in purified or substantially pure form, such as e.g.greater than about 50%, more precisely about 60%, more precisely about70%, more precisely about 80%, more precisely about 90%, more preciselyabout 95%, more precisely about 97%, more precisely about 99% wt purityas determined by art-known methods.

Also, the present invention provides compounds according to thisinvention in a pharmaceutically acceptable form.

Also, the present invention provides compounds according to thisinvention in solid or liquid pharmaceutically acceptable dosage forms,particularly solid oral dosage forms, such as tablets and capsules, aswell as suppositories and other pharmaceutical dosage forms.

The invention further relates to a method for the treatment of mammals,including humans, which are suffering from one of the above mentionedillnesses. The method is characterized in that a pharmacologicallyactive and therapeutically effective and tolerable amount of one or moreof the compounds according to the invention is administered to the illmammal.

The invention further relates to the compounds according to theinvention for use in the treatment and/or prophylaxis of illnesses,especially the illnesses mentioned.

The invention also relates to the use of the compounds according to theinvention for the production of pharmaceutical compositions which areemployed for the treatment and/or prophylaxis of the illnessesmentioned.

The invention also relates to the use of the compounds according to theinvention for the production of pharmaceutical compositions for treatingdisorders which are mediated by phosphodiesterases, in particularPDE4-mediated disorders, such as, for example, those mentioned in thespecification of this invention or those which are apparent or known tothe skilled person.

The invention also relates to the use of the compounds according to theinvention for the manufacture of pharmaceutical compositions having PDE4inhibitory activity.

The invention furthermore relates to pharmaceutical compositions for thetreatment and/or prophylaxis of the illnesses mentioned comprising oneor more of the compounds according to the invention.

The invention yet furthermore relates to compositions comprising one ormore compounds according to this invention and pharmaceuticallyacceptable auxiliaries and/or excipients.

The invention yet furthermore relates to compositions comprising one ormore compounds according to this invention and a pharmaceuticallyacceptable carrier. Said compositions can be used in therapy, such ase.g. for treating, preventing or ameliorating one or more of theabovementioned diseases.

The invention still yet furthermore relates to pharmaceuticalcompositions according to this invention having PDE, particularly PDE4,inhibitory activity.

Additionally, the invention relates to an article of manufacture, whichcomprises packaging material and a pharmaceutical agent contained withinsaid packaging material, wherein the pharmaceutical agent istherapeutically effective for antagonizing the effects of the cyclicnucleotide phosphodiesterase of type 4 (PDE4), ameliorating the symptomsof an PDE4-mediated disorder, and wherein the packaging materialcomprises a label or package insert which indicates that thepharmaceutical agent is useful for preventing or treating PDE4-mediateddisorders, and wherein said pharmaceutical agent comprises one or morecompounds according to the invention. The packaging material, label andpackage insert otherwise parallel or resemble what is generally regardedas standard packaging material, labels and package inserts forpharmaceuticals having related utilities.

The pharmaceutical compositions are prepared by processes which areknown per se and familiar to the person skilled in the art. Aspharmaceutical compositions, the compounds according to the invention(=active compounds) are either employed as such, or preferably incombination with suitable pharmaceutical auxiliaries and/or excipients,e.g. in the form of tablets, coated tablets, capsules, caplets,suppositories, patches (e.g. as TTS), emulsions, suspensions, gels orsolutions, the active compound content advantageously being between 0.1and 95% and where, by the appropriate choice of the auxiliaries and/orexcipients, a pharmaceutical administration form (e.g. a delayed releaseform or an enteric form) exactly suited to the active compound and/or tothe desired onset of action can be achieved.

The person skilled in the art is familiar with auxiliaries, excipients,carriers, vehicles, diluents or adjuvants which are suitable for thedesired pharmaceutical formulations on account of his/her expertknowledge. In addition to solvents, gel formers, ointment bases andother active compound excipients, for example antioxidants, dispersants,emulsifiers, preservatives, solubilizers, colorants, complexing agentsor permeation promoters, can be used.

The administration of the pharmaceutical compositions according to theinvention may be performed in any of the generally accepted modes ofadministration available in the art. Illustrative examples of suitablemodes of administration include intravenous, oral, nasal, parenteral,topical, transdermal and rectal delivery. Oral delivery is preferred.

For the treatment of disorders of the respiratory tract, the compoundsaccording to the invention are preferably also administered byinhalation in the form of an aerosol; the aerosol particles of solid,liquid or mixed composition preferably having a diameter of 0.5 to 10μm, advantageously of 2 to 6 μm.

Aerosol generation can be carried out, for example, by pressure-drivenjet atomizers or ultrasonic atomizers, but advantageously bypropellant-driven metered aerosols or propellant-free administration ofmicronized active compounds from inhalation capsules.

Depending on the inhaler system used, in addition to the activecompounds the administration forms additionally contain the requiredexcipients, such as, for example, propellants (e.g. Frigen in the caseof metered aerosols), surface-active substances, emulsifiers,stabilizers, preservatives, flavorings, fillers (e.g. lactose in thecase of powder inhalers) or, if appropriate, further active compounds.

For the purposes of inhalation, a large number of apparatuses areavailable with which aerosols of optimum particle size can be generatedand administered, using an inhalation technique which is as right aspossible for the patient. In addition to the use of adaptors (spacers,expanders) and pear-shaped containers (e.g. Nebulator®, Volumatic®), andautomatic devices emitting a puffer spray (Autohaler®), for meteredaerosols, in particular in the case of powder inhalers, a number oftechnical solutions are available (e.g. Diskhaler®, Rotadisk®,Turbohaler® or the inhaler described in European Patent Application EP 0505 321), using which an optimal administration of active compound canbe achieved.

For the treatment of dermatoses, the compounds according to theinvention are in particular administered in the form of thosepharmaceutical compositions which are suitable for topical application.For the production of the pharmaceutical compositions, the compoundsaccording to the invention (=active compounds) are preferably mixed withsuitable pharmaceutical auxiliaries and further processed to givesuitable pharmaceutical formulations. Suitable pharmaceuticalformulations are, for example, powders, emulsions, suspensions, sprays,oils, ointments, fatty ointments, creams, pastes, gels or solutions.

The pharmaceutical compositions according to the invention are preparedby processes known per se. The dosage of the active compounds is carriedout in the order of magnitude customary for PDE inhibitors. Topicalapplication forms (such as ointments) for the treatment of dermatosesthus contain the active compounds in a concentration of, for example,0.1-99%. The dose for administration by inhalation is customarilybetween 0.01 and 3 mg per day. The customary dose in the case ofsystemic therapy (p.o. or i.v.) is between 0.003 and 3 mg/kg per day. Inanother embodiment, the dose for administration by inhalation is between0.1 and 3 mg per day, and the dose in the case of systemic therapy (p.o.or i.v.) is between 0.03 and 3 mg/kg per day.

Biological Investigations

The second messenger cyclic AMP (cAMP) is well-known for inhibitinginflammatory and immunocompetent cells. The PDE4 isoenzyme is broadlyexpressed in cells involved in the initiation and propagation ofinflammatory diseases (H Tenor and C Schudt, in “PhosphodiesteraseInhibitors”, 21-40, “The Handbook of Immunopharmacology”, AcademicPress, 1996), and its inhibition leads to an increase of theintracellular cAMP concentration and thus to the inhibition of cellularactivation (J E Souness et al., Immunopharmacology 47: 127-162, 2000).

The antiinflammatory potential of PDE4 inhibitors in vivo in variousanimal models has been described (M M Teixeira, TIPS 18: 164-170, 1997).For the investigation of PDE4 inhibition on the cellular level (invitro), a large variety of proinflammatory responses can be measured.Examples are the superoxide production of neutrophilic (C Schudt et al.,Arch Pharmacol 344: 682-690, 1991) or eosinophilic (A Hatzelmann et al.,Brit J Pharmacol 114: 821-831, 1995) granulocytes, which can be measuredas luminol-enhanced chemiluminescence, or the synthesis of tumornecrosis factor-α in monocytes, macrophages or dendritic cells (Gantneret al., Brit J Pharmacol 121: 221-231, 1997, and Pulmonary PharmacolTherap 12: 377-386, 1999). In addition, the immunomodulatory potentialof PDE4 inhibitors is evident from the inhibition of T-cell responseslike cytokine synthesis or proliferation (D M Essayan, Biochem Pharmacol57: 965-973, 1999). Substances which inhibit the secretion of theaforementioned proinflammatory mediators are those which inhibit PDE4.PDE4 inhibition by the compounds according to the invention is thus acentral indicator for the suppression of inflammatory processes.

Methods for Measuring Inhibition of PDE4 Activity

The PDE4B2 (GB no. M97515) was a gift of Prof. M. Conti (StanfordUniversity, USA). It was amplified from the original plasmid (pCMV5) viaPCR with primers Rb9 (5′-GCCAGCGTGCAAATAAT-GAAGG-3′) and Rb10(5′-AGAGGGGGATTATGTATCCAC-3′) and cloned into the pCR-Bac vector(Invitrogen, Groningen, NL).

The recombinant baculovirus was prepared by means of homologousrecombination in SF9 insect cells. The expression plasmid wascotransfected with Bac-N-Blue (Invitrogen, Groningen, NL) or Baculo-GoldDNA (Pharmingen, Hamburg) using a standard protocol (Pharmingen,Hamburg). Wt virus-free recombinant virus supernatant was selected usingplaque assay methods. After that, high-titre virus supernatant wasprepared by amplifying 3 times. PDE was expressed in SF21 cells byinfecting 2×10⁶ cells/ml with an MOI (multiplicity of infection) between1 and 10 in serum-free SF900 medium (Life Technologies, Paisley, UK).The cells were cultured at 28° C. for 48-72 hours, after which they werepelleted for 5-10 min at 1000 g and 4° C.

The SF21 insect cells were resuspended, at a concentration of approx.10⁷ cells/ml, in ice-cold (4° C.) homogenization buffer (20 mM Tris, pH8.2, containing the following additions: 140 mM NaCl, 3.8 mM KCl, 1 mMEGTA, 1 mM MgCl₂, 10 mM β-mercaptoethanol, 2 mM benzamidine, 0.4 mMPefablock, 10 μM leupeptin, 10 μM pepstatin A, 5 μM trypsin inhibitor)and disrupted by ultrasonication. The homogenate was then centrifugedfor 10 min at 1000×g and the supernatant was stored at −80° C. untilsubsequent use (see below). The protein content was determined by theBradford method (BioRad, Munich) using BSA as the standard.

PDE4B2 activity is inhibited by the said compounds in a modified SPA(scintillation proximity assay) test, supplied by Amersham Biosciences(see procedural instructions “phosphodiesterase [3H]cAMP SPA enzymeassay, code TRKQ 7090”), carried out in 96-well microtiter plates(MTP's). The test volume is 100 μl and contains 20 mM Tris buffer (pH7.4), 0.1 mg of BSA (bovine serum albumin)/ml, 5 mM Mg²⁺, 0.5 μM cAMP(including about 50,000 cpm of [3H]cAMP), 1 μl of the respectivesubstance dilution in DMSO and sufficient recombinant PDE (1000×gsupernatant, see above) to ensure that 10-20% of the cAMP is convertedunder the said experimental conditions. The final concentration of DMSOin the assay (1% v/v) does not substantially affect the activity of thePDE investigated. After a preincubation of 5 min at 37° C., the reactionis started by adding the substrate (cAMP) and the assay is incubated fora further 15 min; after that, it is stopped by adding SPA beads (50 μl).In accordance with the manufacturer's instructions, the SPA beads hadpreviously been resuspended in water, but were then diluted 1:3 (v/v) inwater; the diluted solution also contains 3 mM IBMX to ensure a completePDE activity stop. After the beads have been sedimented (>30 min), theMTP's are analyzed in commercially available luminescence detectiondevices. The corresponding IC₅₀ values of the compounds for theinhibition of PDE activity are determined from the concentration-effectcurves by means of non-linear regression.

The invention claimed is:
 1. A salt selected from the group consistingof5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-onehydrochloride;5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-onemethansulfonate;5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-onecitrate;5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-oneL-tartrate;5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-oneD-tartrate;5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-onemeso-tartrate;5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-oneD-malate;5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-oneL-malate;5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-onefumarate;5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-onemaleinate;5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-one2-oxoglutarate;5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-oneoxalate; and5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-oneD-gluconate.
 2. A salt according to claim 1 which is5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-onehydrochloride.
 3. A salt according to claim 1 which is5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-onefumarate.
 4. A salt according to claim 1 which is5-((2R,4aR,10bR)-9-Ethoxy-2-hydroxy-8-methoxy-1,2,3,4,4a,10b-hexahydro-phenanthridin-6-yl)-1-methyl-1H-pyridin-2-oneL-tartrate.
 5. A pharmaceutical composition comprising one or more saltsas claimed in claim 1 together with a pharmaceutical auxiliary and/orexcipient.
 6. A method of treating diabetes mellitus in a patientcomprising administering to said patient a therapeutically effectiveamount of a salt as claimed in claim 1.